There is nothing wrong with a plastic bottle UAT, actually I'd use nothing else! If yours are sucking in then you have restrictions to the UAT and the plastic bottle is telling you that!
I use the MAP traps and they have std and Hi Flow versions. I use the Hi-Flow on any RXi JetCat and any turbine 180-250N

This is only part of it, clunk, clunk line and overflow fitting need to match the throughput!

Hard walled hopper tanks mask problems...not solve them! The daddy of composite tanks BV still uses a plastic hopper tank (they offer a high flow nipple version too) Don't you think if he thought hard walled was the way to go he would not have introduced one 10 years ago!!

This is a high flow MAP , the filler nipple is std size and feeds both 4.9mm